Origins Space Telescope: trades and decisions leading to the baseline mission concept
Origins Space Telescope: trades and decisions leading to the baseline mission concept
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起源太空望远镜:导致基线任务概念的交易和决策
DOI:
10.1117/1.jatis.7.1.011014
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Bergin, Edward
中科院分区:
文献类型:
--
作者:
Leisawitz, David;Amatucci, Edward;Allen, Lynn;Arenberg, Jonathan;Armus, Lee;Battersby, Cara;Bauer, James;Bell, Ray;Benford, Dominic;Bergin, Edward
The Origins Space Telescope will trace the history of our origins from the time dust and heavy elements permanently altered the cosmic landscape to present-day life. How did galaxies evolve from the earliest galactic systems to those found in the universe today? How do habitable planets form? How common are life-bearing worlds? We describe how Origins was designed to answer these alluring questions. We discuss the key decisions taken by the Origins mission concept study team, the rationale for those choices, and how they led through an exploratory design process to the Origins baseline mission concept. To understand the concept solution space, we studied two distinct mission concepts and descoped the second concept, aiming to maximize science per dollar and hit a self-imposed cost target. We report on the study approach and describe the concept evolution. The resulting baseline design includes a 5.9-m diameter telescope cryocooled to 4.5 K and equipped with three scientific instruments. The chosen architecture is similar to that of the Spitzer Space Telescope and requires very few deployments after launch. The cryo-thermal system design leverages James Webb Space Telescope technology and experience.
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DOI:
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10.1117/1.jatis.7.1.011011
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